on the wavelength/Ob&gy

monozygotic twins

rltwnf 2014. 12. 4. 11:48
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Types of twin pregnancy: (a) Fraternal or non-identical twins usually each have a placenta of their own, although they can fuse if the two placentas lie very close together. (b) Identical twins always share the same placenta, but usually they have their own fetal membranes.

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